<?php
/**
 * Zend Framework
 *
 * LICENSE
 *
 * This source file is subject to the new BSD license that is bundled
 * with this package in the file LICENSE.txt.
 * It is also available through the world-wide-web at this URL:
 * http://framework.zend.com/license/new-bsd
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@zend.com so we can send you a copy immediately.
 *
 * @category   Zend
 * @package    Zend_Feed_Reader
 * @copyright  Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 * @version    $Id: Entry.php 16792 2009-07-17 02:52:37Z norm2782 $
 */

/**
 * @see Zend_Feed_Reader
 */
require_once 'Zend/Feed/Reader.php';

/**
 * @see Zend_Feed_Reader_Extension_EntryAbstract
 */
require_once 'Zend/Feed/Reader/Extension/EntryAbstract.php';

/**
 * @category   Zend
 * @package    Zend_Feed_Reader
 * @copyright  Copyright (c) 2005-2008 Zend Technologies USA Inc. (http://www.zend.com)
 * @license    http://framework.zend.com/license/new-bsd     New BSD License
 */
class Zend_Feed_Reader_Extension_Podcast_Entry extends Zend_Feed_Reader_Extension_EntryAbstract
{
	/**
	 * Get the entry author
	 *
	 * @return string
	 */
	public function getCastAuthor()
	{
		if (isset($this->_data['author'])) {
			return $this->_data['author'];
		}

		$author = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:author)');

		if (!$author) {
			$author = null;
		}

		$this->_data['author'] = $author;

		return $this->_data['author'];
	}

	/**
	 * Get the entry block
	 *
	 * @return string
	 */
	public function getBlock()
	{
		if (isset($this->_data['block'])) {
			return $this->_data['block'];
		}

		$block = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:block)');

		if (!$block) {
			$block = null;
		}

		$this->_data['block'] = $block;

		return $this->_data['block'];
	}

	/**
	 * Get the entry duration
	 *
	 * @return string
	 */
	public function getDuration()
	{
		if (isset($this->_data['duration'])) {
			return $this->_data['duration'];
		}

		$duration = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:duration)');

		if (!$duration) {
			$duration = null;
		}

		$this->_data['duration'] = $duration;

		return $this->_data['duration'];
	}

	/**
	 * Get the entry explicit
	 *
	 * @return string
	 */
	public function getExplicit()
	{
		if (isset($this->_data['explicit'])) {
			return $this->_data['explicit'];
		}

		$explicit = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:explicit)');

		if (!$explicit) {
			$explicit = null;
		}

		$this->_data['explicit'] = $explicit;

		return $this->_data['explicit'];
	}

	/**
	 * Get the entry keywords
	 *
	 * @return string
	 */
	public function getKeywords()
	{
		if (isset($this->_data['keywords'])) {
			return $this->_data['keywords'];
		}

		$keywords = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:keywords)');

		if (!$keywords) {
			$keywords = null;
		}

		$this->_data['keywords'] = $keywords;

		return $this->_data['keywords'];
	}

	/**
	 * Get the entry subtitle
	 *
	 * @return string
	 */
	public function getSubtitle()
	{
		if (isset($this->_data['subtitle'])) {
			return $this->_data['subtitle'];
		}

		$subtitle = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:subtitle)');

		if (!$subtitle) {
			$subtitle = null;
		}

		$this->_data['subtitle'] = $subtitle;

		return $this->_data['subtitle'];
	}

	/**
	 * Get the entry summary
	 *
	 * @return string
	 */
	public function getSummary()
	{
		if (isset($this->_data['summary'])) {
			return $this->_data['summary'];
		}

		$summary = $this->_xpath->evaluate('string(' . $this->getXpathPrefix() . '/itunes:summary)');

		if (!$summary) {
			$summary = null;
		}

		$this->_data['summary'] = $summary;

		return $this->_data['summary'];
	}

	/**
	 * Register iTunes namespace
	 *
	 */
	protected function _registerNamespaces()
	{
		$this->_xpath->registerNamespace('itunes', 'http://www.itunes.com/dtds/podcast-1.0.dtd');
	}
}